3 years ago

Twice the sum of a number, n, and seven is four less than the quotient of a number, n, and three.

Mathematics

1 answer:

deff fn [24]3 years ago

3 0

Answer:

Step-by-step explanation:

$2(n+7)=\frac{n}{3}-4\\ \\ 2n+14=\frac{n-12}{3}\\ \\ 6n+42=n-12\\ \\ 5n+42=-12\\ \\ 5n=30\\ \\ n=6$

You might be interested in

Find the lateral area and surface area of cone

worty [1.4K]

Answer:

$\large\boxed{L.A.=168\pi\ in^2}\\\boxed{S.A.=232\pi\ in^2}$

Step-by-step explanation:

The formula of a lateral area of a cone:

$L.A.=\pi rl$

r - radius

l - slant height

The formula of a surface area of a cone:

$S.A.=\pi r^2+\pi rl$

We have r= 8in and l = 21in. Substitute:

$L.A.=\pi(8)(21)=168\pi\ in^2$

$S.A.=\pi(8^2)+168\pi=232\pi\ in^2$

3 0

3 years ago

A pair of parallel lines is cut by another pair of parallel lines as shown in the figure. Which angles are congruent to angle K?

noname [10]

Answer:

B. angles M, E, and C.

Step-by-step explanation:

Angles are congruent by being corresponding angles, or vertical angles, or alternate interior or exterior angles.

Answer: B. angles M, E, and C.

8 0

3 years ago

Read 2 more answers

2/10 in whole number

Margaret [11]

$\frac{2}{10}$

you just divide 2 by 10, which is

.2

6 0

3 years ago

Rachel has bought 24 pounds of dog food. She feeds her dog 3/4 pounds for each meal. For how many meals will the food last?

lilavasa [31]

Answer:

32 meals

Step-by-step explanation:

24/.75 = 32

- Please let me know if you need a further explanation

7 0

3 years ago

The original height of the leaning tower of pisa was 184.5 feet. at a distance of 140 feet from the base of the tower, the angle

NeTakaya

The answer is D. 9.1

8 0

3 years ago